Women of the Oroqen ethnic group dance during an ice and snow festival in Hulun Buir City, north China's Inner Mongolia Autonomous Region, December 26, 2017. (Photo by Hou Yupeng/Xinhua/Barcroft Images)

A swimmer participates in the annual Christmas winter swimming competition in the Vltava river in Prague, Czech Republic December 26, 2017. (Photo by David W. Cerny/Reuters)

Girls kiss a swimmer as she climbs out of the Vltava river at the traditional Christmas winter swimming competition named in memory of Alfred Nikodem in Prague, Czech Republic, 26 December 2017. Enthusiast swimmers every year brave the cold waters of the Vltava river for a swim on 26 December. This year 369 swimmers took part in water temperatures of 4.5 degrees Celsius. (Photo by Martin Divisek/EPA/EFE)

A member of the Old Surrey Burstow and West Kent Hunt crashes as she jumps a fence during the annual Boxing Day hunt in Chiddingstone, Britain December 26, 2017. (Photo by Simon Dawson/Reuters)

Afghan security forces keep watch at a check point close to a compound of Afghanistan's national intelligence agency in Kabul, Afghanistan. December 25, 2017. (Photo by Omar Sobhani/Reuters)

Visitors walk in front of the illuminated Christmas tree at Cathedral Square in Vilnius, Lithuania, Saturday, December 23, 2017. Over 80 percent of Lithuanians are Christians who celebrate the festival of Christmas on Dec. 25. (Photo by Mindaugas Kulbis/AP Photo)

A woman browses luxury shoes in Selfridges department store during the Boxing Day sale in central London on December 26, 2017. (Photo by Daniel Leal-Olivas/AFP Photo)

Hundreds of people attend the Essex Hunt meeting at Matching Green Essex in Essex, England on December 26, 2017.The hunt sets off from the Chequers public house for the traditional Boxing Day meet. The Essex Hunt has met regularly in Matching Green since the early 19th century, although since 2005 it has not been allowed to use dogs to chase and kill foxes. (Photo by Martin Dalton/Rex Features/Shutterstock)

A Kashmiri woman watches the funeral procession of Noor Mohammed, a top rebel commander at Aripal, 49 kilometres (30.6 miles) south of Srinagar Indian controlled Kashmir,Tuesday, December 26, 2017. Indian troops killed a rebel commander in a gunfight early Tuesday in southern Samboora village in Indian-held Kashmir. A statement by police blamed Mohammed for masterminding and coordinating a string of attacks, including an audacious strike recently by three militants near the highly secured airport in the region's main city of Srinagar. (Photo by Mukhtar Khan/AP Photo)

A Rohingya refugee stands next to a pond in the early morning at the Balukhali refugee camp near Cox's Bazar, Bangladesh December 26, 2017. (Photo by Marko Djurica/Reuters)

Lebanese and Palestinians from the Khiam Rehabilitation center for the victims of torture (KRC) carry pictures of Palestinian detainees during a protest calling for the freedom of 17-year-old Palestinian girl Ahed Al-Tamimi, in front the International Committee of the Red Cross (ICRC) in Beirut, Lebanon, 26 December 2017. The Israeli Army arrested child activist Ahed Al-Tamimi on 19 December 2017 after the outbreak of the Jerusalem uprising following the decision of US President Donald Trump's recognition of Jerusalem as capital of Israel. As of 18 December 2017, the number of Palestinian detainees since the start of the Intifada has reached 350, including 48 children between the ages of 12 and 17. (Photo by Nabil Mounzer/EPA/EFE)

People walk past stranded cargo ship “Ocean Crown” during a windy weather in Klaipeda, Lithuania on December 26, 2017. (Photo by Ints Kalnins/Reuters)

13-year-old sea lion Chen poses after writing the Chinese character for “dog”, which is next year's Chinese zodiac sign, during a press preview at Yokohama Hakkeijima Sea Paradise in Yokohama on December 26, 2017. The sea lion will perform twice a day from January 1, 2018 until Juanuary 31. (Photo by Toru Yamanaka/AFP Photo)

A demonstrators throws a tear gas canister back towards the police during clashes against the pardon of former President Alberto Fujimori in Lima, Peru, Monday, December 25, 2017. Peru's President Pedro Pablo Kuczynski announced Sunday night that he granted a medical pardon to the jailed former strongman who was serving a 25-year sentence for human rights abuses, corruption and the sanctioning of death squads. (Photo by Martin Mejia/AP Photo)

Colombian salsa dancers wait backstage prior to the “Salsodromo” parade in Cali, Colombia, on December 25, 2017, opening the 60th Cali Fair. More than 1,500 dancers from the different salsa schools of the city dance on the streets wearing colorful costumes, representing all aspects of salsa music culture, this the largest parade of salsa dancers in the world. (Photo by Luis Robayo/AFP Photo)

Supporters of incumbent Vladimir Putin vote to officially nominate him for presidency at a hall with a historical pano showing Russia's last Czar Nicholas II with his family, retinue and ministers in Moscow, Russia, Tuesday, December 26, 2017. Putin is set to easily win a fourth term in office in the March 18 election, with his approval ratings topping 80 percent. (Photo by Alexander Zemlianichenko/AP Photo)

Children transport drinking water which they collected on a makeshift carriage, in a village devastated by flash floods in Pansor, Salvador town, Lanao del Norte, in southern Philippines December 26, 2017. (Photo by Richel Umil/Reuters)

Brave souls get ready for a Boxing Day swim put on by Bridport Round Table to raise money for charity in Dorset, England on December 26, 2017. (Photo by Finbarr Webster/Rex Features/Shutterstock)

Around 300 brave swimmers take part in Cromer's annual Boxing Day Dip in the North Sea on December 26, 2017 in Cromer, England. People gather with many in costume to dip into the North Sea off the Norfolk coast on the Boxing Day annual event which has taken place since 1985 to raise money for the Stroke Association charity. (Photo by Andrew Parsons)